Teat-cup for milking-machines.



- P. A. LANE".

- TBAT CUP FOR MILKINGMAUHINES.

I APPLIQATION FILED NOV: 1. 1905.

- PATENTE'D JULY 31, 1906.-

W ED STATES v PATENT F CE- .FREDERIGI A. L Nn oF LITTLE FALLS, NEW YORK, ASSIGNOR '170 D. H. i BURRELL & COMPANY, or LITTLE FALLS, NEW YORK.

' TO'G/ZZ whom/it may concern TEAT-CUP FOR'MILKING-MACHINEIS'. i

No. s27,ieo.

Be it known that I, FREnnRIc'A. LANE, a

citizen of. the United States, residing at Little Falls, in the county ofHerkimer and State of New York, have invented a new and useful Improvement in Teat-CupS for Milking-Machines, of which the following is a specification.

This invention relates to that class of teatcups which are used in connection with a suction apparatus and which are ta ering in form and made of rigid materia for instance, metal or glass, Teat-cups of this character have been provided near .the large end with elastic or flexible washers which project inwardly from the wall of the cup and make an air-tight joint with the teat and revent air from being drawn into the cup y the suction; but such washers hold the side of the teat away from'the inner side of the cup. This results in leaving a considerable part of the teat unsupported, and this causes the blood to settle in the teat under the action of the suction, and that in turn checks the free flow of the milk and prevents the animal from being milked-dry.

The object of my invention is to construct the cup in such manner that this difficulty is overcome and'the teat is fully and rop'erly supported and the suction is applied in such manner that the animal is milked dry.

In the accompanying drawings, Figure 1 is a side elevation-of a teat-cup provided with myimprovement. Fig. 2-is a sectional elevationof the same, showing the cup applied to the teat. Fig. 8' is a detached sectional elevation of the ilexible mouth 'iece. Fig. 4 is a detached side elevation of t e cup. Fig. 5 is a sectional elevation showing a simplified constructon of the cup. and mouthpiece.

Like letters of reference refer to like parts in the several figures.

' A represents the taperingbody of the cup,

having at its small lower end a bead, nipple,-

or other suitable provisionfor connection with the suction-pipe of a milking-machine. The form and size of this body are such that the teat is supported therein. from the tip nearly to the base. As teats .difier considerably in size and form in different cows, these tapering bodies are made ofi different sizes, so as to approximately fit the teat with which they are designed to be used. It is preferred to make the taperingbody slightly smaller than Patented July 31, 1906.

the teat, so that the latter is slightly compressed by the cup. This insures that the teat is properly supported throughout the length'of the tapering part of the cup;

' B, Figs; 1 to 4, represents an annular enlargement or top 0 amber formed at the large end of the tapering body of the cup and having its wall extending outwardly and 'upwardly therefrom and-provided at its upper edge with a hollow bead'or rim b for the attachment of the fiexiblemouthpiece C. The latter is preferably made of soft india-rubber and com rises an outer annular attachinge wall a, whi rim 1;, and an inner annular packingcurtain 0, which depends from the top of the mouthch is sprung over the top head or piece into the cavity of the top chamber, ex-

tending outwardly and upwardly, from the large end of the tapering body. This.

mouthpiece bears with its top and its inner curtain 0 against the base or upper portion of the teat'D near the junction of the latter with the udder. The hollow chamber -or cavity of the outward enlargement at the top of the tapering body of the cup accommodates this curtain and permits the same to bear snugly against the teat without exerting. a harmful pressure and at the same time ermits of a certain amount of lateral as We 1 as up-and-down motion, which enables the mouthpiece and thebody of the cup to adapt itself nicely to the teat. The inner curtam of the mouthpiece forms a yielding continuation of the tapering body of the teat-cup and sup orts the teat snugly above the large end of t 1e taperingbody of the cupl The teat is supported at its-sidepractica throughout thereby avoided, and a complete dry milking" of the animal is eflected.

In the simplified construction represented in the construction shown in Figs. 1, 2, and 4, whereby the tendency of solid matter to 1 in Fig. 5 the annular chamber B at the top. ofthe tapering body A is made steeper than too lodge in the chamber is greatly reduced. The shape of the mouthpiece E is somewhat simpler than that of the mouth iece O, since'it comprisesa plain outer 'wal e and an inner wall e, which isshorter than the outer wall,

cilitated.

"whereby the molding of the mouthpiece is fai A cup of this construction applied to a suclarge end of the tapering body, and a flexible 15 'tion-pipe in which vacuum pulsations are mouthpiece having an outer wall by which'it maintained will have a small amount of upis attached to said enlargement and an inner and-down movement on the teat, the cup depending packing-Wall which is located in g inoving slightly upwardly on the teat when said cavity above the large end of the taperthe suction is a had and descendin" sli htly in body and ca able of sidewise movement 20 PP a: i g P when the suction is relieved, without, owin said cavity, substantially as set forth. ever, becoming detached from the teat. Witness my hand this 27th day of October, I claim as my invention- 1905. z'p A teat-cup comprising a rigid tapering body shaped to receive and support the teat FREDERIO LANE; and having at its large end an enlargement Witnesses: forming an internal annular cavity which eX- Looms BURRnn, tends outward y and upwardly from the F. A. TINKER. 

